The female Shih-Tzu was discovered with a broken neck, leg and teeth by a member of the public.

She also sustained puncture wounds to her lower jaw and legs, a prolapsed eye and extensive bruising.

The pet was discovered in a green wheelie bin in Prenton, Merseyside at 3pm on December 19.

RSPCA said the animal must have "suffered immensely" and have not ruled out animal cruelty.

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REVEALED: These items were also found with the dead dog

“Someone must recognise her and is clear she must have suffered immensely”

Detective Inspector Julia Bowden

Inspector Anthony Joynes, of RSPCA Wirral, said: "A member of the public found the dog in a bag within their green wheelie bin yesterday at about 3pm and rang the police who alerted the RSPCA.

"When a vet examined her body we found she had extensive bruising, multiple puncture wounds to the lower jaw and legs, recently missing and broken teeth, a broken rear leg, fractured neck and a prolapsed eye.

"We are keeping an open mind as to what may have happened, but I am keen to find out what happened in this little dog's final moments.

"Someone must recognise her and is clear she must have suffered immensely."

A pink XXL hoody with "Discover Life Club" was also found inside the Christmas bag and a strip of red carpet.

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HORROR INJURIES: RSPCA have not ruled out animal cruelty

The price tag was still on the bag.

Inspector Joynes said the dog's injuries were to consistent with being hit by a car

He is appealing for information on the incident.

Mr Joynes added: "Her injuries don't appear to be consistent with her being hit by a car and I am concerned as to how she got them."